No, the slipstream effect in GT5 is over-accentuated on all cars. It's possible a lighter car may have a faster draft effect, but it has more to do with the actual game.
Aerodynamic efficiency more than likely. The Furai is good for mega downforce so air travels around the car much faster. Although more downforce makes for lower top speed so it's your call depending on what you're doing.
Aerodynamic efficiency more than likely. The Furai is good for mega downforce so air travels around the car much faster. Although more downforce makes for lower top speed so it's your call depending on what you're doing.